//
//  AppDelegate.swift
//  TYHWeibo
//
//  Created by IOS on 15/7/28.
//  Copyright © 2015年 IOS. All rights reserved.
//啊实打实的

import UIKit
//

///试图控制器切换通知字符串
let TYHRootViewControllerSwitchNotification = "TYHRootViewControllerSwitchNotification"

@UIApplicationMain
class AppDelegate: UIResponder, UIApplicationDelegate {

    var window: UIWindow?


    func application(application: UIApplication, didFinishLaunchingWithOptions launchOptions: [NSObject: AnyObject]?) -> Bool {
        //注册通知
        NSNotificationCenter.defaultCenter().addObserver(self, selector: "switchViewController:", name: TYHRootViewControllerSwitchNotification, object: nil)
        
        print(UserAccount.sharedAccount)
//        print(isNewUpdate())
        setupAppearance()
        
        window = UIWindow(frame: UIScreen.mainScreen().bounds)
        window?.backgroundColor = UIColor.whiteColor()
        window?.rootViewController = defaultViewController()
        window?.makeKeyAndVisible()
        
        return true
    }
    
    deinit {
        //注销通知
        NSNotificationCenter.defaultCenter().removeObserver(self)
    }
    
    func switchViewController(n: NSNotification) {
        print("切换控制器 \(n)")
        let MainVc = n.object as! Bool
        
        window?.rootViewController = MainVc ? MainViewController() : WelcomeViewController()
    }
    
    ///返回默认的控制器
    private func defaultViewController() -> UIViewController {
        //判断是否登录
        if !UserAccount.userLogin {
            return MainViewController()
        }
        
        // 判断是否有新特性
        return isNewUpdate() ? NewFeatureCollectionViewController() : WelcomeViewController()
        
    }
    
    ///检测是否有新版本
    private func isNewUpdate() -> Bool {
        
//        print(NSBundle.mainBundle().infoDictionary)
        //获取当前程序的版本号
        let currentVersion = Double(NSBundle.mainBundle().infoDictionary!["CFBundleShortVersionString"] as! String)
        
        //获取之前的版本号 偏好设置
        let sandboxVersionKey = "sandboxVersionKey"
        let sandboxVersion = NSUserDefaults.standardUserDefaults().doubleForKey(sandboxVersionKey)
        
        //将当前版本保存到偏好设置
        NSUserDefaults.standardUserDefaults().setDouble(currentVersion!, forKey: sandboxVersionKey)
    
        //返回比较结果
        return currentVersion > sandboxVersion
    }
    
    //设置外观
    private func setupAppearance() {
        UINavigationBar.appearance().tintColor = UIColor.orangeColor()
        UITabBar.appearance().tintColor = UIColor.orangeColor()
    
    }

    func applicationWillResignActive(application: UIApplication) {
        // Sent when the application is about to move from active to inactive state. This can occur for certain types of temporary interruptions (such as an incoming phone call or SMS message) or when the user quits the application and it begins the transition to the background state.
        // Use this method to pause ongoing tasks, disable timers, and throttle down OpenGL ES frame rates. Games should use this method to pause the game.
    }

    func applicationDidEnterBackground(application: UIApplication) {
        // Use this method to release shared resources, save user data, invalidate timers, and store enough application state information to restore your application to its current state in case it is terminated later.
        // If your application supports background execution, this method is called instead of applicationWillTerminate: when the user quits.
    }

    func applicationWillEnterForeground(application: UIApplication) {
        // Called as part of the transition from the background to the inactive state; here you can undo many of the changes made on entering the background.
    }

    func applicationDidBecomeActive(application: UIApplication) {
        // Restart any tasks that were paused (or not yet started) while the application was inactive. If the application was previously in the background, optionally refresh the user interface.
    }

    func applicationWillTerminate(application: UIApplication) {
        // Called when the application is about to terminate. Save data if appropriate. See also applicationDidEnterBackground:.
    }


}

